Is it normal for battery terminals to get hot?

Bad battery. Terminals can get hot because your generator (or alternator) is hauling ass to try to charge it up when it wont take a charge. Swap out the battery and you’ll probably be golden.Click to see full answer. Likewise, people ask, what causes battery terminals to get hot?The biggest reason a battery terminate or connection would get hot is the connection is lose. That along with the high amount of power it is using to try and start will make it get very hot. The terminals on a lead acid battery can even melt from the heat. A hot cable and battery can cause injury.Furthermore, why is my battery terminal smoking? There is a faulty, high resistance (often due to corrosion, wire defect or break or loose mechanical connection) connection at the battery post and/or at the vehicle ground(s) at the frame. When replacing, particular attention should be paid to the cleanliness and quality of the vehicle ground connection. Considering this, should battery cables get hot? If one cable is only getting hot then you need to clean the connection on both ends and/or replace the cable. Any excessive resistance of a cable will dissipate heat. Once copper gets too hot it will always have an increased resistance. No, the starter should not cause the heat in the cable.Is it OK to put Vaseline on battery terminals?Before winter starts, disconnect the terminals and clean them with a wire brush. Reconnect, then smear with petroleum jelly. The jelly will prevent corrosion and help keep the battery cranking all winter long.